Oslo's calculators

Do the math right here: in your browser, with no sign-up, and your numbers never leave your device. Every calculator says which rule it uses and where it comes from.

Debts and rates

• Debt snowball or avalanche: compare both methods with your debtsCompare the debt snowball and the debt avalanche with your own debts: how many months until you're debt-free, total interest and the payoff order.For everyone
• Calculator to convert a monthly interest rate into an effective annual rateConvert a monthly interest rate to an effective annual one, Argentina's TNA to its TEA, or a card's daily-rate APR to an effective rate. With official sources.For everyone
• Debt payoff calculator: how long until your debt is paid offSee how many months it takes to pay off a loan or credit card with a fixed payment, how much interest you'll pay and what an extra payment saves.For everyone

This is a reference calculation with the general rule of the law or the formula, not advice: your contract or your bank may say otherwise. Always check the official source before deciding.

Try it with Oslo

One calculation solves today. Oslo is with you every day: log in seconds and see what you really have left until your next payday.